Yes, a clear discharge from vagina with no smell and odor along with missed periods can be a sign
. Since you have missed your periods then please take a pregnancy
test. If urine pregnancy test is negative then go for a blood pregnancy test. A blood HCG estimation test would be more reliable. If the test is negative then you are not pregnant. If it is borderline, repeat after 48 hours to see if the levels are rising. Rising levels indicate pregnancy. Take care!